Disc harrow blade



FIG. 1 is a front perspective view of the disc harrow blade;

FIG. 2 is a rear perspective of the disc harrow blade;

FIG. 3 is a plan top view of the disc harrow blade;

FIG. 4 is a front side view of the disc harrow blade the back side viewbeing a mirror image; and,

FIG. 5 is a left side view of the disc harrow blade, the rught side viewbeing a mirror image.

CLAIM The ornamental design for the disc harrow blade, as shown anddescribed.